/* ── Components CSS: Form, Buttons, Tables, Tabs, Modals, Badges, Viewers ── */

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    line-height: 1.4;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--primary);
    color: #FFFFFF;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: #FFFFFF;
    border-color: var(--border);
    color: var(--text);
}

.btn-secondary:hover {
    background-color: #F8FAFC;
    border-color: #CBD5E1;
}

.btn-success {
    background-color: var(--success);
    color: #FFFFFF;
}

.btn-success:hover {
    background-color: #0E6B37;
}

.btn-danger {
    background-color: var(--danger);
    color: #FFFFFF;
}

.btn-danger:hover {
    background-color: #A82417;
}

.btn-sm {
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 0.7rem 1.4rem;
    font-size: 1rem;
}

.btn-icon {
    padding: 0.45rem;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-group {
    display: inline-flex;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.btn-group .btn {
    border-radius: 0;
    border-right: 1px solid rgba(0,0,0,0.1);
}

.btn-group .btn:first-child {
    border-top-left-radius: var(--radius-sm);
    border-bottom-left-radius: var(--radius-sm);
}

.btn-group .btn:last-child {
    border-top-right-radius: var(--radius-sm);
    border-bottom-right-radius: var(--radius-sm);
    border-right: none;
}

/* ── Forms & Inputs ── */
.form-group {
    margin-bottom: 0.9rem;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.3rem;
}

.form-label-req::after {
    content: " *";
    color: var(--danger);
}

.form-control, .form-select {
    width: 100%;
    padding: 0.45rem 0.7rem;
    font-size: 0.9rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background-color: #FFFFFF;
    color: var(--text);
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
}

.form-control:focus, .form-select:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15);
}

.input-with-unit {
    display: flex;
    align-items: center;
}

.input-with-unit .form-control {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    flex: 1;
}

.input-unit {
    padding: 0.45rem 0.65rem;
    background: #F1F5F9;
    border: 1px solid var(--border);
    border-left: none;
    border-top-right-radius: var(--radius-sm);
    border-bottom-right-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    min-width: 44px;
    text-align: center;
}

.form-row {
    display: flex;
    gap: 0.75rem;
}

.form-row > * {
    flex: 1;
}

.search-box {
    position: relative;
    width: 100%;
}

.search-box input {
    padding-left: 2.2rem;
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ── Tabs ── */
.tab-nav {
    display: flex;
    gap: 0.25rem;
    border-bottom: 2px solid var(--border);
    margin-bottom: 1.25rem;
    list-style: none;
}

.tab-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-btn:hover {
    color: var(--primary);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background: rgba(15, 108, 189, 0.04);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* ── Data Tables ── */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #FFFFFF;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    text-align: left;
}

.data-table th {
    background-color: #F8FAFC;
    color: var(--text);
    font-weight: 600;
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid #F1F5F9;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
    user-select: none;
}

.data-table th.sortable,
.fb-main-table-wrap th,
.results-table-wrap th,
.comp-table-wrap th,
.purlin-table-wrap th,
.table-responsive th,
.fb-card th,
th.sortable,
table.sortable th {
    cursor: pointer !important;
    user-select: none !important;
    position: relative;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.data-table th.sortable:hover,
.fb-main-table-wrap th:hover,
.results-table-wrap th:hover,
.comp-table-wrap th:hover,
.purlin-table-wrap th:hover,
.table-responsive th:hover,
.fb-card th:hover,
th.sortable:hover,
table.sortable th:hover {
    background-color: #E2E8F0 !important;
    color: #0D2B4E !important;
}

.th-sort-icon {
    display: inline-block;
    margin-left: 4px;
    font-size: 0.72rem;
    opacity: 0.35;
    transition: all 0.15s ease;
    vertical-align: middle;
}

th:hover .th-sort-icon {
    opacity: 0.8;
}

th.sort-asc, th.sort-desc {
    background-color: #E0EDF9 !important;
    color: #0D2B4E !important;
    font-weight: 700 !important;
}

th.sort-asc .th-sort-icon,
th.sort-desc .th-sort-icon {
    opacity: 1 !important;
    color: #0D2B4E !important;
}

.data-table td {
    padding: 0.55rem 0.85rem;
    border-bottom: 1px solid #F1F5F9;
    border-right: 1px solid #F8FAFC;
    color: var(--text);
}

.data-table tbody tr:hover {
    background-color: #F1F5F9;
    cursor: pointer;
}

.data-table tbody tr.active {
    background-color: #E8EDF4 !important;
    font-weight: 500;
}

.data-table tbody tr.row-warning {
    background-color: #FFF9E6;
}

.data-table td.num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.data-table td.center {
    text-align: center;
}

/* ── Badges & Tags ── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.55rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 12px;
    line-height: 1;
}

.badge-primary { background: var(--primary-light); color: var(--primary-dark); }
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-gray { background: #E2E8F0; color: #475569; }

/* ── SVG & CAD Viewers ── */
.viewer-container {
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    width: 100%;
}

.viewer-toolbar {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    gap: 4px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(4px);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 4px;
    z-index: 20;
}

.viewer-svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* ── Modals / Dialogs ── */
body.modal-open {
    overflow: hidden !important;
}

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(2px);
    z-index: 1300; /* trên sidebar (1200) và thanh trên (1100) của shell.css */
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    overscroll-behavior: contain;
}

.modal-backdrop.open {
    display: flex;
}

.modal-dialog {
    background: #FFFFFF;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 650px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modalSlide 0.2s ease-out;
    overscroll-behavior: contain;
}

.modal-dialog.lg {
    max-width: 950px;
}

.modal-dialog.xl {
    max-width: 1200px;
}

@keyframes modalSlide {
    from { transform: translateY(15px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #F8FAFC;
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 1.25rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 0.85rem 1.25rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    background: #F8FAFC;
}

/* ── Result Property Grid (Đặc trưng hình học) ── */
.prop-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem 1rem;
    background: #F8FAFC;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.85rem;
}

.prop-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 0.88rem;
    border-bottom: 1px dashed #E2E8F0;
    padding-bottom: 0.25rem;
}

.prop-label {
    color: var(--text-muted);
}

.prop-val {
    font-weight: 600;
    color: var(--text);
    font-family: var(--font-mono);
}

.prop-val-highlight {
    color: var(--primary);
    font-size: 1rem;
}

/* ── Interactive Spreadsheet Grid (Xà gồ & Báo giá) ── */
.spread-grid {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.spread-grid th {
    background: #F1F5F9;
    border: 1px solid #CBD5E1;
    padding: 6px 8px;
    font-weight: 600;
    text-align: center;
}

.spread-grid td {
    border: 1px solid #CBD5E1;
    padding: 4px 6px;
}

.spread-grid td input, .spread-grid td select {
    width: 100%;
    border: 1px solid transparent;
    padding: 3px 5px;
    font-size: 0.85rem;
    background: transparent;
    border-radius: 2px;
}

.spread-grid td input:focus, .spread-grid td select:focus {
    background: #FFFFFF;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 1px var(--border-focus);
    outline: none;
}

/* ── Ô lọc dạng "nhãn + ô chọn" trên một hàng (desktop; mobile.css ghi đè) ── */
.filter-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.filter-item label {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
}

.filter-item select,
.filter-item input {
    font-family: inherit;
    font-size: 0.82rem;
    height: 28px;
    padding: 0 4px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background-color: #FFFFFF;
    color: var(--text);
}